<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">
        首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理
      </el-breadcrumb-item>
      <el-breadcrumb-item>用户列表
      </el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query"
            clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search"
              @click="searchUser">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>
    </el-card>
    <!-- 用户列表区域 -->
    <el-table :data="userList" border stripe>
      <el-table-column type="index" label="#">
      </el-table-column>
      <el-table-column label="姓名" prop="username">
      </el-table-column>
      <el-table-column label="邮箱" prop="email">
      </el-table-column>
      <el-table-column label="电话" prop="mobile">
      </el-table-column>
      <el-table-column label="角色" prop="role_name"></el-table-column>
      <el-table-column label="状态" prop="mg_state">
        <template v-slot="scope">
          <el-switch v-model="scope.row.mg_state"
            @change="userStateChange(scope.row)">
          </el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="180px">
        <template v-slot="scope">
          <!-- 编辑用户信息按钮 -->
          <el-button v-model="scope.row.id" type="primary"
            icon="el-icon-edit" size="mini"
            @click="showEditDialog(scope.row.id)">
          </el-button>
          <!-- 删除用户按钮 -->
          <el-button type="danger" icon="el-icon-delete" size="mini"
            @click="removeUserById(scope.row.id)">
          </el-button>
          <!-- 分配角色提示窗口 -->
          <el-tooltip effect="dark" content="分配角色" placement="top"
            :enterable="false">
            <!-- 分配角色按钮 -->
            <el-button type="warning" icon="el-icon-setting"
              size="mini" @click="setRole(scope.row)">
            </el-button>
          </el-tooltip>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
    <el-pagination @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum" :page-sizes="[2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper" :total="total">
    </el-pagination>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef"
        label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username">
          </el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password">
          </el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email">
          </el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile">
          </el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消
        </el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 编辑用户信息对话框 -->
    <el-dialog title="编辑用户信息" :visible.sync="editDialogVisible"
      width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules"
        ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email">
          </el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile">
          </el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消
        </el-button>
        <el-button type="primary" @click="editUserInfo">确 定
        </el-button>
      </span>
    </el-dialog>
    <!-- 分配用户角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible"
      @close="setRoleDialogClosed" width="50%">
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id"
              :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取
          消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定
        </el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    var checkMobile = (rules, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      //获取列表参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加对话框的显示与隐藏
      addDialogVisible: false,
      //   添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
        // rid: -1
      },
      //   添加用户的表单验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3到10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 6,
            max: 15,
            message: '密码的长度在6到15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            type: 'email',
            message: '请输入正确的邮箱地址',
            trigger: ['blur', 'change']
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号码',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制修改对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      editFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            type: 'email',
            message: '请输入正确的邮箱地址',
            trigger: ['blur', 'change']
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号码',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 显示分配用户角色对话框与否
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已经选中的角色Id
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    //查询用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      this.userList = res.data.users
      this.total = res.data.total
    },
    searchUser() {
      this.queryInfo.pagenum = 1
      this.getUserList()
    },
    // 修改每页数据量
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 改变当前页数
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 改变用户状态
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('修改用户状态失败!')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户弹窗关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功！')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 展示编辑用户对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败！')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 编辑用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改信息的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败！')

        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据id删除对应的用户信息
    async removeUserById(id) {
      var confirmRes = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
        center: true
      }).catch(err => err)
      if (confirmRes !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户信息失败！')
      this.$message.success('删除用户信息成功！')
      this.getUserList()
    },
    // 分配用户角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      if (res.meta.status !== 200) return this.$message.error('更新角色列表失败！')
      this.$message.success('更新角色列表成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>
<style lang="less" scoped></style>
